PIC18F87J90 Datasheet, PDF (425/450 Pages) Microchip Technology – 64/80-Pin, High-Performance Microcontrollers with LCD Driver and nanoWatt Technology

PIC18F87J90 FAMILY
TABLE 28-24: A/D CONVERTER CHARACTERISTICS: PIC18F87J90 FAMILY (INDUSTRIAL)
Param
No.
Symbol
Characteristic
Min
Typ
Max
Units
Conditions
A01 NR
Resolution
—
—
10
bits
A03 EIL
Integral Linearity Error
—
—
<±1
LSb VREF  3.0V
A04 EDL Differential Linearity Error
—
—
<±1
LSb VREF  3.0V
A06 EOFF Offset Error
—
—
<±3
LSb VREF  3.0V
A07 EGN
A10 —
Gain Error
Monotonicity
—
—
<±3
Guaranteed⁽¹⁾
LSb VREF  3.0V
— VSS  VAIN  VREF
A20 VREF Reference Voltage Range
(VREFH – VREFL)
2.0
—
2.0
—
—
V VDD  3.0V
—
V VDD  3.0V
A21 VREFH Reference Voltage High
VSS + VREF —
VDD
V
A22 VREFL Reference Voltage Low
VSS – 0.3V — VDD – 3.0V V
A25 VAIN Analog Input Voltage
VREFL
—
VREFH
V
A30 ZAIN Recommended Impedance of
—
Analog Voltage Source
A50 IREF
VREF Input Current⁽²⁾
—
—
—
2.5
k
—
5
A During VAIN acquisition.
—
150
A During A/D conversion
cycle.
Note 1: The A/D conversion result never decreases with an increase in the input voltage and has no missing
codes.
2: VREFH current is from RA3/AN3/VREF+ pin or VDD, whichever is selected as the VREFH source.
VREFL current is from RA2/AN2/VREF- pin or VSS, whichever is selected as the VREFL source.
 2010 Microchip Technology Inc.
DS39933D-page 425